Best way to tell is to open it up and see what CPU card is in it... there's always a chance it might have been upgraded in the past as well?Thanks all,
@cchhrriiss11, so if there is no indication of the model (apart 'MicroPDP-11'), it's a 11/23?
Thanks Chris,
I have no access to the machine as it is ~900km (~600miles) away and the seller is reluctant to open the it or even to send it by a transporter. He asks prospective buyers to come and have a look.
Jean-Pierre
I thought that they were not to be found at all now, but while I had the opportunity to buy on eBay, they appeared on sale twice. Once - only a microchip, once - a complete KDF11-B.Anyone got a set of the CIS chips they want to sell???
What is so special about a Micro PDP-11?I thought that they were not to be found at all now, but while I had the opportunity to buy on eBay, they appeared on sale twice. Once - only a microchip, once - a complete KDF11-B.
And the sale price is $200-300 when they appear! Since it's double-wide (spans two sockets) supporting six dies I guess that's either $100-150 per "chip" or $33-50 per die :-}. But if you really want to run DIBOL fast ...I thought that they were not to be found at all now, but while I had the opportunity to buy on eBay, they appeared on sale twice. Once - only a microchip, once - a complete KDF11-B.
...interesting, as I will be shortly passing by very very close....Thanks for all comments
If someone is interested it is this sale:
The seller has 13 microPDP: microPDP, microPDP-11/53, microPDP-11/73.
I guess for COBOL.But if you really want to run DIBOL fast
I believe I have a pair of them on 11/23+ boards. What would one do with them?I got one of these MicroPDP-11 machines a little while ago as well, turned out to be an 11/23+ (KDF11-B)...
Anyone got a set of the CIS chips they want to sell???
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-Chris
What would one do with them? Well... in my case, fill empty socketsI believe I have a pair of them on 11/23+ boards. What would one do with them?
Also if I recall, Cobol81 can compile with the CIS option in the 11/23+, 11/24, or 11/44 systems.
Generally speaking, string processing. The 11/44 implementation is well documented:What would one do with them?
Not only string processing, but also decimal arithmeticGenerally speaking, string processing